Crack initiation prediction under complex thermomechanical loading

被引：0

作者：

Desmorat, R ^{[1
]}

Sermage, JP ^{[1
]}

Lemaitre, J ^{[1
]}

机构：

[1] Univ Paris, F-75252 Paris, France

来源：

CAPE '99: AGEING OF MATERIALS AND METHODS FOR THE ASSESSMENT OF LIFETIMES OF ENGINEERING PLANT | 1999年

关键词：

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

As creep-fatigue was mainly studied in uni-axial tension, it is shown here how to proceed with materials experiments and calculations subjected to multi-axial loading and when temperature varies in time and space. The constitutive equations used are those of elasto-visco-plasticity coupled or not, to damage, with isotropic and kinematic hardening. It is shown that the unified damage law first proposed for ductile failure and then for fatigue may also be applied to multi-axial creep-fatigue interaction with a new expression of the damage threshold.

引用

页码：107 / 119

页数：13

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